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fiasKO [112]
3 years ago
11

What's 20 x 12? I NEED HELP

Mathematics
2 answers:
alexira [117]3 years ago
8 0

Answer:

240

Step-by-step explanation:

you multiply 20x12

neonofarm [45]3 years ago
7 0

Answer:

240

Step-by-step explanation:

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Calcule la ecuación general de la recta que pasa por la intersección de la recta:
adell [148]

La ecuación general de la recta es x + 3 · y = - 15.

<h3>¿Cómo determinar la ecuación de una recta?</h3>

Según la geometría, una recta es generada por la existencia de dos puntos distintos y en este problema debemos hallar una ecuación de la recta que pasa por la intersección de las dos rectas y otro punto. Primero, determinamos la solución del sistema de ecuaciones lineales para conocer la localización del primer punto:

7 · x - 15 · y = 39                 (1)

5 · x + y = - 19                     (2)

The solución del sistema de ecuaciones lineales is (x, y) = (- 3, - 4).

Segundo, determinamos la pendiente de la recta mediante la fórmula de la recta secante:

m = [- 6 - (- 4)] / [3 - (- 3)]

m = - 1 / 3

Tercero, determinamos el intercepto a partir de la ecuación de la recta:

b = y - m · x

b = - 6 - (- 1 / 3) · 3

b = - 6 + 1

b = - 5

Finalmente, determinamos la ecuación de la recta en su forma general:

y = (- 1 / 3) · x - 5

(1 / 3) · x + y = - 5

x + 3 · y = - 15

La ecuación general de la recta es x + 3 · y = - 15.

Para aprender más sobre la ecuación general de la recta: brainly.com/question/19588565

#SPJ1

7 0
2 years ago
11 POINTS! FIND Z PLEASE! WILL MARK BRAINLIEST! The surface area of this rectangular prism is 8,462 square centimeters.
Archy [21]

Answer:

The answer to your question is z = 87 cm

Step-by-step explanation:

Data

Surface area of the rectangular prism = 8,462 cm²

Find z

Process

1.- Write and equation that help to solve the problem

Surface area = 2(13z) + 2(13)(31) + 2(31z)

-Simplify

           8462 = 26z + 806 + 62z

           8462 - 806 = 26z + 62z

                     7656 = 88z

                          z = 7656/88

-Result

                          z = 87 cm

8 0
4 years ago
Miguel is designing shipping boxes that are rectangular prisms. The shape of one box, with height h in feet, has a volume define
ycow [4]

Answer:

  96 ft³

Step-by-step explanation:

A graphing calculator conveniently graphs this function. It shows the maximum volume is about 96 ft³.

7 0
2 years ago
Derek swam 5 laps in 1/4<br> of an hour. Find the laps he swims per hour.
Wewaii [24]
He swims 20 laps per hour
7 0
3 years ago
Read 2 more answers
Brian has $30 in his piggy bank. He earns $10 a week at his job.
sleet_krkn [62]

Answer:

B. 2 weeks

Step-by-step explanation:

1st week

Brian will have $40

Sarah will have $30

2nd week

Brian will have $50

Sarah will have $50

3 0
3 years ago
Read 2 more answers
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